Sprinkler-head.



WH-namo W. W. HAWKINS.

SPRINKLER HEAD.

APPLICATION FILED DEG 6,1913.

Patented Nov. 3, 1914.

glmwtov s' i "ewes s a WILLIAM w.

ESSZGNQR TO THE GLOBE- AUTOMATIC SPRINKLER-BRAZIL To all it/lam it may concern:

Be it known that I, E'V'LLLHM Vt. HAW

KINS, :i'eitizen of the United States-and resitling at Now/d, in the county of Hmuiltun a and State of Ohio. have invented 1; new and Improved Sprinkler-Head, rif whih the following specification is =1 full-disclosure.

My invention relates to an in'iprovenient Y in sprinkler heads for-use in connectimi with automatic fire extinguisher systems, and which are primarily. of a Character and type as disclosed in the patent to Charles B. Gar:- rett No. 1,013,5 l5, dated Jan. 2, 1912, wherein a strut structure, unitarily comprised of 21 L6 series of elements, is employed for securing the nozzle Cap in its n nnnilly closed position. The improeement herein is .princifor its object to provide for a reduction in the number of parts to facilitate the maxim facture and assembluge,.a.nd increase its eiiiciency and reliability.

Other ohjects will bein part obvious from the annexed drawings, and in partinclicaterli 26 in 'connection therewith v by the following analys s of the invention. i v V parts and arrangement of elements dedner the members.

To enable others skilled in the it so 'fhlly I to comprehend the nnrlerlyin I features thereof that they may emhoiift 2*. same by numerous n'iodifieations in structure. eoi'iteinlate l 1) this invention drawings deniet' ing a prefei'rreri foxn have been annexed as a part of this ilSC-l()i\l1'. 8n(i n such dram" ings, likQ-ChETRCiQIS of reference denote cor;-

of the the nozzle which is adapted to he in the usual way to pi fitting? fire extinguisher install end of this nozzle 1, tern Specification of Letters Patez'it.

pally directedto the s1 rut structure, and has hletherefrom, and in the unique i'el'zitionnf' Patenteii Nov. 3, 19M

app'iieatiozi fi led December 6. 1313. Serial 505.038=

simulz iis swat 2) Flange 2, and is further pr wn ,-(l with one or arch that supports a hub 1" ni its upper portion; an abutment screw is screwed. smelly through the hub and projeuted belew the same. A spraying head or (lishibuter 6 is secured to the .pper portion 02 the hub 4 and projects he l e seine. v I orifice or -\'uterii scl1arge pess'iqeof can seat. is normally closed by a 021 I,

n ierably of bronze,and-between which ill seat 11 thin copper gasket is A eompression block 9 is sea;-v ne cap '7, having on its ugiper face i'ieti'i': lily extended groove that em-(1s e e lower end of the strut, presl be described.

c parts "4', 8 and 9 re held together, and the gasket 8 is tightly pressed onto the. Sharp 11 per edge of the'cap' seat 2 by a acting strut structure. This strut structure herein is possessed of the features in con'mion as unit as that Of said atone said Gnri'ettqmtent er analogous. types of sprinkler head, in having the general compenenl's of a compression meniher' and alevee ineinft-eir v with the difi'erentiating featuies coingriseifl in the means for retaining the free or long earl of the lever toward the cnn pre-M. m 1ueznln z ,(iis eontiadistingnished from the ioeking em, in the aforesaitl intent and snalogous types o1 sprinkle! Heads.

The emistruutions ,of memb r :12 sslien the. compression le; member are identified in general. not novel .i'ensfter exemplified, ate to the coznhimv tint structure as a is made to apro -iigig strut as illusompression member 19 compression or strut enil is see ted in the and; its

and is provided with a depression 11, in which the lower end of the abutment screw 5 is seated. The long end of the lever 11 1S provided with a fusible link, including a front release piece 12, and a back release piece 13. The front piece 12 at its lower edge is-provided with a concave flange or .wardly bent lip 17, and at its sides with backwardly bent lips. \Vhen the two elemerits l2 and 13% are aseernbled solder or fusible metal is interposed between them to rigidly unite the same.

The lever 11 is. engaged through the slot in the flange 16 of the upper end of the back iiece 1 of the fusible link. The lever 11 at its sides in provided with stops or lugs ll. that engage the flange 16 of the back piece i u'. At its extreme lower end the lever 11 is formed with a notch 18 that embraces the lip of said back release piece 13.

The fusible link is flexibly interlocked to the lever, so that .both the lever and the link are relieved from torsional strains;

The. strut structure retaining means, com

prises a clevis loop integrallyprojected from the htlttt member 10 to clasp the free end of the lever 11. The strut is a stamping integrally formed from an approximately roctangular blank, apcrtured at .one end to roride a blunt edge blade 23 at the base 0 the shank portion and the clevis loop 24. The (-levis loop engages with the hook end of the front release piece 12 of the lever, lockingly binding the lover to the shank of the strut. 'lhe elevis loop is preferably provided with a. straight-bar portion 25 which is engaged by the lover, or front release piece as a fusi ble separate element, which bar serves as an axis or fulcrum when the parts of the lever separate, aiding materially -the projected collapse of the parts required idthe func [inning of an approved sprinkler head. 'lhisintegrally formed clevis element of the compreseion member reduces the number of parts, the expense of manufacture and materially facilitates the assemblage of the sprinkler head.

llaring thus describtdv my.- invention, I claim as new and desire to secure by Letters Patent of the United Stateszfe'.

1. strut member forautomatic' sprinklcr heads stamped from an approximately rectangular blank, providing p. shank portion apertnred at one end to form a clevie loop. laterally bent, the opposite end of the shank portion slitted coinoidently with its longitudinal nun-gins and the central portion of the shank longitudinally Corrugated to provide flexible and reinforced inflexible portions.

A. strut member for automatic sprinkler heads, formed from an integral blank, apertured at one end to provide a clevis loop, and a blunt edge blade when said loop is bent laterally thereto.

3. A strut member for sprinkler heads, integrally comprising a rigid shank portion having a blunt edge blade at one end and n clevis loop at said end projected laterally.

4. A strut member {or sprinkler heads integrally comprising a reinforced non-flexible .shank portion. having atone end flexiblemargin portions, and its opposite end formed into a. blunt edge blade and a clevis loop projected therefrom intermediate of: the ends. i

In witness whereof, I hereunto subscribe my name, as attested by the two subscribing witnesses.

WILLIAM W. HAWKINS. W itnessess V Kivrllnrix' V. IIAYES 

